dead body vs clay

dead body and clay both are nouns.

Word	Noun	Adjective	Verb	Adverb
dead body	Yes	No	No	No
clay	Yes	No	No	No

As nouns, clay is a hyponym of dead body; that is, clay is a word with a more specific, narrower meaning than dead body:

Other hyponyms of dead body include kill, carcase, carcass, carrion, roadkill, cadaver, corpse, remains, stiff, mummy.

dead body (noun)	clay (noun)
a natural object consisting of a dead animal or person	the dead body of a human being
	a very fine-grained soil that is plastic when moist but hard when fired
	water soaked soil; soft wet earth